Roll exercise device



FIG. 1 is a perspective view of a roll exercise device showing our new design, the broken line showing of the person is for illustrative purposes only and forms no part of the claimed design;

FIG. 2 is a side elevational view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a frontal view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof. 

The ornamental design for a roll exercise device, as shown and described. 